Can Guanyin be put in the chanting bucket?

Absolutely, the Buddha statue represents the body and mind of the Buddha, and the scriptures in the prayer wheel represent the mouth and heart of the Buddha. It would be better to add stupa.

Special note: Tibetan Buddhism and Han Buddhism are both Mahayana teachings, and the teachings are the same as many practitioners, but the incarnation of Bodhisattva is different for various reasons. For example, there are three buddhas (statue, avatar and body image). Han Buddhism worships the incarnation method, while Tibetan Buddhism worships the Dharma method, but they all do salvation and compassion!